The JBX43809 40-meter simplex fiber optic patch cable represents professional-grade connectivity for telecommunications, data centers, and enterprise network environments requiring long-distance signal transmission with minimal signal degradation. **Technical Excellence** This cable features verified 9/125 singlemode fiber construction with G.657.A1 glass fiber specifications, delivering superior performance characteristics. The simplex configuration (single fiber strand) enables unidirectional signal transmission, making it ideal for specific applications requiring dedicated signal paths. SC/APC and E2000/APC connectors provide secure, low-loss connections with ≤0.35dB insertion loss (0.15dB typical) and ≥20dB return loss, ensuring signal integrity over the full 40-meter span. **Performance Specifications** Attenuation testing conducted per ANSI/TIA/EIA-455-171-A-2001 standards confirms performance at 1310 nm (0.25 dB/km) and 1550 nm (0.35 dB/km). The 1.8mm outside diameter provides flexibility for routing through cable trays and conduits while maintaining durability through repeated installations. **Compliance & Safety** TAA compliant certification ensures suitability for U.S. government projects and federally-funded initiatives. RoHS/ELV compliance and EU Directive 2002/95/EC adherence eliminate hazardous substances from manufacturing. OFNR riser-rated jacketing allows installation in plenum spaces and vertical runs without additional conduit when applicable. **Practical Benefits** Yellow jacket identification simplifies network management and cable tracing. Available in custom lengths for unique installation requirements. Multiple domestic warehouses (Danville CA, Fort Worth TX, Beaufort SC) ensure rapid fulfillment with free standard shipping on orders exceeding $99. **Applications** Perfect for campus networks, metropolitan area networks (MANs), long-haul telecommunications, fiber-to-the-premises (FTTP) installations, and data center interconnects. The simplex configuration suits point-to-point applications where dedicated signal paths are necessary. **Warranty & Support** 90-day limited warranty provides peace of mind. Professional-grade construction ensures years of reliable service in demanding installations.